Stereopticon slide



May 11 1926.

H. L. HAGAN STEREOPTICON SLIDE Filed Sept. 4. 1924 Patented May ll, 1926.

UNITED STA TEs PATENT OFFICE.

HUGH I.. HAGAN, or oAxLANn, CALIFORNIA, assIGNoa 'ro man o nona-UNE sarna comm, or SAN FnANcIsco, CALIFORNIA, A CORPORATION. or CALIFORNIA.

srnanorrrcon sum1 Application ined september 4, 1924. serial Nozsaseo.

' The principal object of my invention is to provide a stereopticon slide which embodies a chance device, such as a spinner so that the operation of such device may be observed I! upon a screen onto which rays of light are projected through the slide.

Another object is to provide novel means for rotating the spinner when the chance device assumes this form.

With the foregoing in view, the invention resides in the novel .subject matter hereinafter described andV claimed, the description being supplemented by the accompanying drawings.

Figure 1 is a side elevation partly in section. f

Figure 2 is a horizontal sectional view as indicated by line 2 2 of Fig. 1.

Figure 3 is an enlargd detail horizontal sectional view illustratm one of the many iii'erent ways in which t e spinner may be rotatabl mounted. The orm of construction selected for illustration in the present application has been rather specifically described, withthe understanding however that within the scope of `the invention as claimed, numerous changes may be made.

The numerals 1 desi ate a pair of spaced,

8 0 parallel transparent p ates which are preferably formed of glass with their ripheral ,portions held against opposite si es of the spacing) frame 2 or otherwise associated with a suita le spacing means. In the construc- 56 tion shown, the plates 1 are secured to the y.frame by binding tape 3.

Between the plates 1, a chance device is shown, said chance device being in the form of a spinner 4, evenly balanced and rotatably 0 mounted in any suitable manner, as indicated at 5. One of theD lates 1 preferably is provided with an annu ar series of numbers or other characters to co-act with the spinner, but in some instances these numbers might well be omitted, or if desired they can be placed on a separate piece of transparent material (not shown Formed throu h two adjacent side bars of the frame 2, t ere is shown a pair of air 5 inlet passages 6 whose inner ends ma welll be provided with nipples 7 discharglng in the plane of rotation o the spinner 4, in different directions and at points spaced about the circular path of said spinner. The outer end of the passages 6 may well communicate with a nipple 8, and any suitable means such as a hand bulb 9 connected with this nipple by a tube 10, may be employed to create an inward blast of air through the passages 6 and nipples 7, so that the jet discharged from oneA or the other of these nipples will spin the spinner 4, regardless of the position in which said spinner may have stopped after its preceding operation.

While the pneumatic means above denscribed, are preferably used for operating the spinner, other means could well be employedwithin the scope of the invention. Hence, I do not wish to be restricted to the use of such pneumatic means. Moreover, while-the chance device is preferably conned between two frame-carried plates, it will be understood that in a sim le form of construction, it might be rotatab y mounted at one side of a single plate, in which instance it could well be spun by hand.

The device is adapted to be placed in the usual slide holder of a stereopticon or other light ray projector, and the chance device is intended to be operated while rays of light are being projected through the glass plate -\or plates. Thus, an ima e of the rotating s inner or other chance evice may be disp ayed upon a 4screen and the movements of Said device clearl seen by an audience. The po'int at which the spinner stops, visible to the entire audience, ma well be used for determining any desire question. :For instance, in moving picture theaters, it may be intended to give a free ticket to the holder of a luc number such number to be determinedv y operation of the device, after giving patrons of the theater slips of`paper with numbers printed thereon, before or after entering the theater. By determining the lucky number before the entire audience, there can be no possible discussion as to the winner.

It may here be added that it is not abso lutely essential to provide an air escape from the space between the two transparent plates when the construction shown, is followed. There is of course a certain air leakage between the frame 2 and the plates and tape 3 which permits the escape of any air forced into the device by the bulb or the like 9. If desired however, a` gap 1l may be left in the tape, so as to permit air to more read- Y against the same, an

il escape, than if no positive vent were emp oyed.

Excellent results may be obtained from the details disclosed and they may therefore Well be followed, but within the scope of the invention as claimed, it may be embodied in numerous forms, as will be clear from the foregoing.

1. A device of the class described compris ing a pair of spaced parallel transparent plates, a frame holding said plates in spaced relation for movement bodily into or from the slide holder of a light ray projector, a chance device between said plates intended to be operated while light rays are being projected through the plates, whereby the operation of said chance device may be observed upon a screen, and means whereby air is discharged between said plates and directl aga-inst said chance device for operating the same.

2. A device of the class described comprising a pair of spaced parallel transparent plates, a frame holding said plates in spaced relation for movement bodily into or from the slide holder of a light ray projector, a

lspinner mounted between said plates and in tended to be o rated While light rays are projecto through the plates, whereby e movement of'said spinner and its stop ping oint may be observed upon a4 screen, a plura ity of spaced air passages extending into the space between the plates and discharging in different directions in the plane of rotation of the s inner to act directly (fineans for creating a blast of air throughsaid/passages to spin the spinner. i

3. A chance device comprising a Support, a spinner mounted thereon, a plurality of spaced air passages discharging in different directions 1n the plane vof rotation of the spinner, and means for granting a blast of air through said passages and against the spinner4 to spin the saine. 4. A device of the class described com ris ing a transparent plate adapted to be he d in the slide holder o a light ray projector and a chance device comprising an 'annular series of indicating characters arranged on said plate and a spinner loosel pivoted on said plate for cooperation wit said characters and adapted to be rapidly spun while the light rays are bei g projected through the plate, whereby the operation ofthe chance device may be observed u n a'screen. 5. A device of the class escribed comprising a pa1r"of` spaced parallel transparent plates, a frameiolding said plates inspaced relation, a s inner mountedbetween said plates, air in et passa es in said frame nipples connected with -t e inner ends. o said passages in positionv tovdischarge blasts of air-in different directions in the plane of rotation of said" spinner whereby the same is rapidly spun, anipple connected with the outer end of said passages and means con nected with said nipple for c'reating'a blast of air through said passages and vagainstthe spinner.

In testimony whereof I havehereunto aixed my signature.

HUGH L.

il?7 escape, than if no positive vent were emp o ed. i

xcellent results may be obtained from the details disclosed and they may therefore well be followed, but Within the scope of the invention as claimed, it maybe embodied in numerous forms, as will be clear from the 1 foregoing.

l against the same, an

I claim 1. A device of the class described comprising a pair of spaced parallel transparent plates, a frame holding said plates in spaced relation for movementl bodily into or from the slide holder of a light ray projector, a chance device between said plates intended to be operated while light rays are being projected through the plates, whereby the operation of said chance device may be ob-l served upon a screen, and means whereby air is discharged between said plates and directl against said chance device for operating t e same. l

2. A device of the class described comprising a pair of `spaced parallel transparent plates, a. frame holding said plates in spaced relation for movement bodily into or from the slide holder of a light ray proJector, a

'spinner mounted between said plates and intended to be o rated While light ra s are being projecte through the plates, vv ereby the movement ofrsaidspinner and its stopping ont may be observed upon a' screen, a

lura ity of spaced air assages extending into the spaceA between t e plates and discharging in different directions in the plane of rotation of the s inner to act directly DISCLAIMER 1,584,53 1.v-Hugh L. HaganI Oakland Calif. Srnnnor'ricoN SLIDE.

May 11, 1,926. Disclaimer Brady. Hereb [({c'ial Gazette July 19, 1.938.]

means-for creating a p blast of air Athrough said/passages to spin the spinner.

3. A chance device comprising a support a spinner mounted thereon, a plurality o s aced air passages discharging in different irections in the plane of rotation of the spmner, and means for creating a blast of air through said passages and against the spinner to spin the same.

4. A device of the class described com rising a transparent plate adapted to be held in the slide holder o a light ray projector and a chance device comprising an annular series of indicating characters arranged on said plate and a spinner loosel pivoted on said plate for cooperation wit said characters andadapted to be rapidly spun while the light rayls are being projected through the s ate, w ereby the operation of the chance evice may be observed u on a screen.

5. A device of the class ascribed comprising a pair ot spaced parallel transparent plates, a frame`liolding said plates in spaced relation, a s inner mounted between said plates, air in et passa es in said frame nipples connected with -t e inner endsof said passagesl in position to discharge blasts of air in different directions4 in the plane of rotation of said' spinner whereby the same lis rapidly spun, anlpple connected with the outer end of said nected with said nipple for creating a blast of air `through said passages and against `the spinner.

In testimony whereof I have hereunto axed my signature.

HUGH L. HAGAN.

Patent dated l filed June 22, 193s, by um assignee, mak c' enters this disclaimer to claim 4 of said Letters Patent. 4

assages pand means con- DISOLAlMER 1,584,531.-Hugh L. Hagan, Oakland, Calif. STEHEOPTICON SLIDE. Patent dated May 11, 1926. Disclaimer filed June 22, 1938, by the assignee, Frank C' Brady. Hereb enters this disclaimer to claim 4 of said Letters Patent.

l cial Gazette July 1.9, 1938.] 

